Component fixing device and electrical device having the same

ABSTRACT

A component fixing device includes a holding portion for holding a component with a hollow portion while restricting a movement of the component; and a fixed portion elastically connected to the holding portion and to be fixed to an object. The holding portion is inserted into the hollow portion of the component for holding the component. The holding portion may have a center holding portion abutting against an outer surface of the component and a pair of arm portions disposed at both sides of the center holding portion and capable of bending relative to the center holding portion, so that the center holding portion and the arm portions sandwich the component.

CROSS-REFERENCE TO RELATED APPLICATIONS

This is a divisional application of the prior application Ser. No.11/210,703 filed Aug. 25, 2005, allowed.

BACKGROUND OF THE INVENTION

The present invention relates to a component fixing device for fixing acomponent such as a ferrite core of an electrical device such as acopier and an electronic photo printer, and an electrical device havingthe same.

Conventionally, a ferrite core is provided on a cable for reducing anelectrical noise generated in an electrical device such as a copier andan electronic photo printer. Japanese Patent Publication No. 2000-173827has disclosed a method of fixing a ferrite core to an object. That is, acable passes through a hollow portion of a ferrite core, and the ferritecore is retained in a storage case. The storage case is provided with aconnecting portion with a claw, so that the storage case is attached toa housing or a board of an electrical device as the object. In thiscase, it is necessary to provide a space at the object for fixing thestorage case, thereby causing limitation in a location for fixing theferrite core.

In view of the problems described above, an object of the presentinvention is to provide a component fixing device for fixing a ferritecore to an object even when it is difficult to provide a sufficientspace for fixing the ferrite core.

Further objects and advantages of the invention will be apparent fromthe following description of the invention.

SUMMARY OF THE INVENTION

In order to attain the objects described above, according to the presentinvention, a component fixing device includes a holding portion forholding a component with a hollow portion while restricting a movementof the component; and a fixed portion elastically connected to theholding portion and to be fixed to an object. The holding portion isinserted into the hollow portion of the component for holding thecomponent. The holding portion may have a center holding Portionabutting against an outer surface of the component and a pair of armportions disposed at both sides of the center holding portion andcapable of bending relative to the center holding portion, so that thecenter holding portion and the arm portions sandwich the component.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing a component fixing device accordingto a first embodiment of the present invention;

FIG. 2 is a front view showing a ferrite core as a component accordingto the first embodiment of the present invention;

FIG. 3 is a front view showing the component fixing device according tothe first embodiment of the present invention;

FIG. 4 is a front view showing the component fixing device according tothe first embodiment of the present invention in a state that a holdingportion of the component fixing device passes through a hollow portionof a ferrite core;

FIG. 5 is a perspective view showing the component fixing deviceaccording to the first embodiment of the present invention in a statethat the component fixing device holds the ferrite core (No. 1);

FIG. 6 is a perspective view showing the component fixing deviceaccording to the first embodiment of the present invention in a statethat the component fixing device holds the ferrite core (No. 2);

FIG. 7 is a perspective view showing the component fixing deviceaccording to the first embodiment of the present invention in a statethat the component fixing device is attached to an electronic photoprinter;

FIG. 8 is a perspective view showing a component fixing device accordingto a second embodiment of the present invention;

FIG. 9 is a perspective view showing the component fixing deviceaccording to the second embodiment of the present invention in a statethat the component fixing device holds a ferrite core;

FIG. 10 is a perspective view showing the component fixing deviceaccording to the second embodiment of the present invention in a statethat the component fixing device holds the ferrite core;

FIG. 11 is a perspective view showing a component fixing deviceaccording to a third embodiment of the present invention;

FIG. 12 is a perspective view showing the component fixing deviceaccording to the third embodiment of the present invention in a statethat the component fixing device holds a ferrite core;

FIG. 13 is a perspective view showing the component fixing deviceaccording to the third embodiment of the present invention in a statethat the component fixing device holds the ferrite core (No. 1); and

FIG. 14 is a perspective view showing the component fixing deviceaccording to the third embodiment of the present invention in a statethat the component fixing device holds the ferrite core (No. 2).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereunder, embodiments of the present invention will be explained withreference to the accompanying drawings. In the embodiments, a ferritecore is used as an example of a component to be fixed with a componentfixing device.

First Embodiment

FIG. 1 is a perspective view showing a ferrite core fixing device as acomponent fixing device according to a first embodiment of the presentinvention. FIG. 2 is a front view showing a ferrite core as a componentaccording to the first embodiment of the present invention. FIG. 3 is afront view showing the component fixing device according to the firstembodiment of the present invention.

As shown in FIG. 1, a ferrite core fixing device 1 is formed of anelastic sheet, and includes a holding portion 2 and a fixed portion 3 tobe fixed to an object. The holding portion 2 has a pair of arm portions5 and 6 having a linear symmetrical shape and a groove portion 4 betweenthe arm portions 5 and 6. The arm portions 5 and 6 have chamferedportions 5 a and 6 a and hook claws 5 b and 6 b at distal end portionsthereof (upper side in FIG. 1). The arm portions 5 and 6 also haveengaging portions 5 c and 6 c extending in parallel to the grooveportion 4 at middle outside thereof. Step portions 5 d and 6 d areformed at lower ends of the engaging portions 5 c and 6 c. The fixedportion 3 includes a screw hole 7 at a position shifted to one side froman extension line of the groove portion 4 of the holding portion 2 forfixing the ferrite core fixing device 1 to an object.

In the present embodiment, a material of the ferrite core fixing device1 includes polyethylene terephthalate (PET). The ferrite core fixingdevice 1 has a thickness of, for example, 0.5 mm. Instead ofpolyethylene terephthalate, the ferrite core fixing device 1 may beformed of other plastic materials such as an ABS resin and anengineering plastic, or a metal film with characteristics similar tothose of the plastic materials described above.

As shown in FIG. 2, a ferrite core 10 has a hollow portion 11 with aflat oval shape. The hollow portion 11 has a width (long side) L1 of,for example, 10 mm, and a height (short side) t of, for example, 1 mm.As described above, the ferrite core fixing device 1 has a thickness of0.5 mm. A flat cable 12 (described alter) has a thickness of, forexample, 0.3 mm. Accordingly, the ferrite core fixing device 1 and theflat cable 12 can pass through the hollow portion 11 of the ferrite core10 at the same time.

A dimensional relationship between the ferrite core fixing device 1 andthe hollow portion 11 of the ferrite core 10 will be explained withreference to FIG. 3. A largest width of the holding portion 2 of theferrite core fixing device 1, i.e., a distance L2 from the hook claw 5 bto the hook claw 6 b, is set to be greater than the width L1 of thehollow portion 11 of the ferrite core 10. The groove portion 4 isdisposed between the arm portions 5 and 6 of the ferrite core fixingdevice 1. Accordingly, the arm portions 5 and 6 can bend toward eachother and contact with each other when an external force is applied.

A width L4 of the groove portion 4 is set such that a distance L3between the hook claws 5 b and 6 b becomes smaller than the width L1 ofthe hollow portion 11 when the arm portions 5 and 6 bend and contactwith each other with an external force (state represented by phantomlines in FIG. 3). In other words, each width is set so that thefollowing relationships are established; L1<L2, L1>L3, L3=L2−L4.Further, a distance L5 between the engaging portions 5 c and 6 c of theferrite core fixing device 1 is set to be smaller than the distance L2from the hook claw 5 b to the hook claw 6 b, and to be equal to orslightly larger than the width L1 of the hollow portion 11 of theferrite core fixing device 1. Accordingly, it is possible to reducerattle between the engaging portions 5 c and 6 c and the ferrite corefixing device 1 when the engaging portions 5 c and 6 c of the ferritecore fixing device 1 are inserted into the hollow portion 11 of theferrite core 10. Further, a distance L6 between the step portions 5 dand 6 d of the ferrite core fixing device 1 is set to be greater thanthe width L1 of the hollow portion 11 of the ferrite core 10.

An operation of the ferrite core fixing device 1 for holding the ferritecore 10 will be explained next. FIG. 4 is a view a state that theholding portion 2 of the ferrite core fixing device 1 passes through thehollow portion 11 of the ferrite core 10. The holding portion 2 of theferrite core fixing device 1 is inserted into the hollow portion 11 ofthe ferrite core 10 as follows. First, the flat cable (not shown) isinserted into the hollow portion 11 of the ferrite core 10. As shown inFIG. 3, the chamfered portions 5 a and 6 a abut against both endportions of the hollow portion 11 of the ferrite core 10, so that theholding portion 2 is pushed into the hollow portion 11 from this state.With the pushing operation, the arm portions 5 and 6 bend in a directionapproaching with each other to become the state represented by thephantom lines in FIG. 3. In this state, it is possible to insert the armportions 5 and 6 into the hollow portion 11.

When the hook claws 5 b and 6 b of the ferrite core fixing device 1 passthrough the hollow portion 11, the arm portions 5 and 6 return to theoriginal state separating from each other with a restoration forcethereof as shown in FIG. 4. Therefore, the holding portion 2 does notcome off from the hollow portion 11. At this time, since the distance L5between the engaging portions 5 c and 6 c is set to be slightly greaterthan the width L1 of the hollow portion 11 of the ferrite core fixingdevice 1, the engaging portions 5 c and 6 c are pressed against an outersurface of the hollow portion 11, thereby eliminating rattle. Theengaging portions 5 c and 6 c have a length (distance from lower ends ofthe hook claws 5 b and 6 b to upper ends of the step portions 5 d and 6d) is set to be slightly greater than a length of the ferrite core 10(vertical length in FIG. 4), so that the ferrite core 10 is held withthe engaging portions 5 c and 6 c between the hook claws 5 b and 6 b andthe step portions 5 d and 6 d.

FIGS. 5 and 6 are views showing a state that the ferrite core fixingdevice 1 holds the ferrite core 10. As shown in FIGS. 5 and 6, theferrite core fixing device 1 holds the flat cable 12 and the ferritecore 10. In this state, since the screw hole 7 of the fixed portion 3 isapart from the flat cable 12, the flat cable 12 does not become anobstacle when the ferrite core fixing device 1 is attached to theobject. It is arranged such that the ferrite core 10 and the ferritecore fixing device 1 are movable relative to the flat cable 12 in alongitudinal direction of the flat cable 12.

A process of attaching the ferrite core fixing device 1 holding theferrite core 10 to an object will be explained next. In this embodiment,the object is an electronic photo printer as an example. FIG. 7 is aperspective view showing the ferrite core fixing device 1 in a statethat the ferrite core fixing device 1 is attached to an electronic photoprinter 20. In FIG. 7, the electronic photo printer 20 is shown in astate that a portion thereof where the ferrite core fixing device 1 isfixed is cut out for easy explanation.

As shown in FIG. 7, an operation portion board 22 is disposed inside anoperation portion case 21 of the electronic photo printer 20, and aconnector 23 is connected to the operation portion board 22. Theconnector 23 is connected to an end portion of the flat cable 12. Acontrol board 24 is disposed at a bottom of the electronic photo printer20, and a connector 25 is connected to the control board 24. Theconnector 24 is connected to the other end of the flat cable 12.Accordingly, the operation portion board 22 is electrically connected tothe control board 24 through the flat cable 12.

The flat cable 12 passes through the ferrite core 10, and the ferritecore fixing device 1 holds the ferrite core 10. The ferrite core fixingdevice 1 is fixed to a frame 26 at a side of the electronic photoprinter 20 with a screw 27. In the electronic photo printer 20 shown inFIG. 7, an attaching surface of the frame 26 extends substantially in ahorizontal direction. Accordingly, the ferrite core fixing device 1 isfixed to the frame 26 in a state that the fixed portion 3 is bent at theright angle relative to the holding portion 2.

As described above, the ferrite core 10 and the ferrite core fixingdevice 1 are movable relative to the flat cable 12. Accordingly, it ispossible to fix the ferrite core 10 at an appropriate position on theelectronic photo printer 20 by moving the ferrite core 10 and theferrite core fixing device 1 relative to the flat cable 12. Further, itis also possible to fix the ferrite core 10 at an appropriate positionon the electronic photo printer 20 by bending the fixed portion 3relative to the holding portion 2 of the ferrite core fixing device 1 toproperly change a shape of the ferrite core fixing device 1.

When the ferrite core 10 is removed from the electronic photo printer20, an operation reversed from the operation described above isperformed. That is, the screw 27 fixing the ferrite core fixing device 1to the frame 26 is removed, so that the ferrite core fixing device 1 isremoved from the frame 26. Then, the arm portions 5 and 6 of the ferritecore fixing device 1 are bent to approach with each other, and theferrite core fixing device 1 is pulled out from the hollow portion 11 ofthe ferrite core 10. Alternatively, the ferrite core 10 may be pulledout from the ferrite core fixing device 1 in a state that the ferritecore fixing device 1 is fixed to the frame 26. In this case, it is easyto perform a maintenance operation of the electronic photo printer 20.

As described above, in the first embodiment, the holding portion 2 ofthe ferrite core fixing device 1 is inserted into the hollow portion 11of the ferrite core 10 to hold the ferrite core 10, and the ferrite corefixing device 1 is fixed to the object with the fixed portion 3 of theferrite core fixing device 1. Accordingly, it is possible to easilyattach the ferrite core 10 to the object in a simple way. Further, it ispossible to reduce an area for attaching the ferrite core 10. Since theferrite core fixing device 1 is formed of an elastic sheet, it ispossible to properly change a shape of the ferrite core fixing device 1according to a shape of the object. It is not necessary to use a specialtool for molding the ferrite core fixing device 1, thereby making itpossible to produce the ferrite core fixing device 1 with low cost.

Second Embodiment

FIG. 8 is a perspective view showing a ferrite core fixing deviceaccording to a second embodiment of the present invention. As shown inFIG. 8, similar to the ferrite core fixing device 1 in the firstembodiment, a ferrite core fixing device 31 is formed of an elasticsheet and includes a holding portion 32 and a fixed portion 33 to befixed to an object.

The holding portion 32 has a center holding portion 34 and a pair of armportions 35 and 36 capable of bending at both sides of the centerholding portion 34. The arm portions 35 and 36 have rectangular holes 35a and 36 a at base portions thereof close to bending portions thereof,respectively. The arm portion 35 has a hook claw 35 b at a distal endthereof. The arm portion 36 has a rectangular hole 36 b with a cutportion 36 c. The hook claw 35 b can be inserted into the cut portion 36c. A base portion 35 c of the hook claw 35 b enters the rectangular hole36 b of the arm portion 36, so that the arm portion 35 engages the armportion 36.

The rectangular holes 35 a and 36 a have a height (lateral length inFIG. 8) slightly larger than the thickness of the ferrite core 10. Therectangular holes 35 a and 36 a have a width (vertical length in FIG. 8)slightly larger than the length of the ferrite core 10. Accordingly, theferrite core 10 can enter the rectangular holes 35 a and 36 a. A widthof the center holding portion 34, i.e., a distance between the armportions 35 and 36, is set to be slightly larger than a width of theflat cable 12 (FIG. 9) and slightly smaller than the width of theferrite core 10.

Bent portions 37 and 38 are formed at both sides of the center holdingportion 34 to enter the rectangular holes 35 a and 36 a, respectively.The bent portions 37 and 38 have a width (vertical length in FIG. 8)substantially same as the length of the ferrite core 10. A distancebetween the bent portions 37 and 38 is set to be substantially same asthe width of the ferrite core 10. Similar to the ferrite core fixingdevice 1, the fixed portion 33 has a screw hole 7 for fixing the ferritecore fixing device 31 to an object. The screw hole 7 is formed at aposition shifted from a position where the flat cable 12 passes through.

An operation of the ferrite core fixing device 31 for holding theferrite core 10 will be explained next. FIG. 9 is a perspective viewshowing an operation of the ferrite core fixing device 31 for holdingthe ferrite core 10. FIG. 10 is a perspective view showing the ferritecore fixing device 31 in a state that the ferrite core fixing device 31holds the ferrite core 10. As shown in FIG. 9, first, the flat cable 12passes through the hollow portion 11 of the ferrite core 10. In a statethat the ferrite core 10 abuts against the center holding portion 34 ofthe ferrite core fixing device 31 (FIG. 8), the arm portions 35 and 36are bent. At this time, both side portions of the ferrite core 10 enterthe rectangular holes 35 a and 36 a, so that the arm portions 35 and 36are easily bent. Then, the ferrite core 10 enters the rectangular holes35 a and 36 a, so that a movement thereof in the vertical direction isrestricted. Further, the bent portions 37 and 38 restrict a movement ofthe ferrite core 10 in the lateral direction.

Next, as shown in FIG. 10, the hook claw 35 b of the arm portion 35 isinserted into the cut portion 36 c of the arm portion 36. The baseportion 35 c of the hook claw 35 b enters the rectangular hole 36 b.Accordingly, the arm portion 35 engages the arm portion 36 in a state ofholding the ferrite core 10. Similar to the first embodiment, theferrite core fixing device 31 holding the ferrite core 10 is fixed tothe object with a screw. That is, a screw is inserted into the screwhole 7 formed in the fixed portion 33 of the ferrite core fixing device31 to fix the ferrite core fixing device 31 to the frame of theelectronic photo printer 20.

When the ferrite core 10 is removed from the electronic photo printer20, an operation reversed from the operation described above isperformed. That is, the screw fixing the ferrite core fixing device 31to the frame is removed, so that the ferrite core fixing device 31 isremoved from the frame. The hook claw 35 b of the arm portion 35 of theferrite core fixing device 31 is pulled out from the rectangular hole 36b of the arm portion 36. The arm portions 35 and 36 are opened torelease the ferrite core 10. Alternatively, the ferrite core 10 may bepulled out from the ferrite core fixing device 31 in a state that theferrite core fixing device 31 is fixed to the frame. In this case, it iseasy to perform a maintenance operation of the electronic photo printer20.

As described above, in the second embodiment, the ferrite core fixingdevice 31 sandwiches and holds the ferrite core 10 from outside.Accordingly, in addition to the advantages of the first embodiment, itis possible to fix the ferrite core 10 regardless of a size of thehollow portion 11 of the ferrite core 10. The ferrite core 10 issandwiched and held from outside not to move in the vertical and lateraldirections. Accordingly, it is possible to prevent the ferrite core 10from hitting and damaging a surrounding part due to a vibration or animpact of a device as the object. It is possible to hold the ferritecore 10 simply by engaging the arm portions 35 and 36, thereby making iteasy to attach the ferrite core 10.

Third Embodiment

FIG. 11 is a perspective view showing a ferrite core fixing deviceaccording to a third embodiment of the present invention. As shown inFIG. 11, similar to the ferrite core fixing device 1 in the firstembodiment, a ferrite core fixing device 41 is formed of an elasticsheet, and includes a holding portion 42 and a fixed portion 43 to befixed to an object.

The holding portion 42 has a center holding portion 44 and a pair of armportions 45 and 46 capable of bending at both sides of the centerholding portion 44. The arm portions 45 and 46 have rectangular holes 45a and 46 a at base portions thereof close to bending portions thereof,respectively. The arm portion 45 has a hook claw 45 b at a distal endthereof. The arm portion 46 has a rectangular hole 46 b with a cutportion 46 c. The hook claw 45 b can be inserted into the cut portion 46c. A base portion 45 c of the hook claw 45 b enters the rectangular hole46 b of the arm portion 46, so that the arm portion 45 engages the armportion 46.

In the ferrite core fixing device 41, similar to the ferrite core fixingdevice 31 in the second embodiment, the rectangular holes 45 a and 46 ahave a height (lateral length in FIG. 11) slightly larger than thethickness of the ferrite core 10. The rectangular holes 45 a and 46 ahave a width (vertical length in FIG. 11) slightly larger than thelength of the ferrite core 10. Accordingly, the ferrite core 10 canenter the rectangular holes 45 a and 46 a. A width of the center holdingportion 44, i.e., a distance between the arm portions 45 and 46, is setto be slightly larger than the width of the flat cable 12 (FIG. 12) andslightly smaller than the width of the ferrite core 10.

Two types of bent portions 45 d, 46 d and 45 e, 46 e are formed at bothsides of the center holding portion 44, respectively. The bent portions45 d and 45 e are arranged to enter the rectangular hole 45 a, and thebent portions 46 d and 46 e are arranged to enter the rectangular hole46 a, respectively. A distance between the bent portions 45 e and 46 eis set to be slightly larger than the width of the ferrite core 10. Thebent portions 45 e and 46 e sandwich the ferrite core 10 from outside torestrict a movement of the ferrite core 10 in the lateral direction.

A distance between the bent portions 45 d and 46 d is set to besubstantially same as the distance between the arm portions 45 and 46.The bent portions 45 d and 46 d have a height smaller than that of thebent portions 45 e and 46 e. Accordingly, when the holding portion 42holds the ferrite core 10, the bent portions 45 d and 46 d become apressed state with side surface portions of the ferrite core 10. Asdescribed alter, the bent portions 45 d and 46 d are provided forrestricting a movement of a ferrite core 14 having a size smaller thanthe ferrite core 10 (FIG. 14) in the vertical direction when the ferritecore fixing device 41 holds the ferrite core 14. Similar to the ferritecore fixing device 1 in the first embodiment, the fixed portion 43 hasthe screw hole 7 for fixing the ferrite core fixing device 41 to anobject. The screw hole 7 is formed at a position shifted from a positionwhere the flat cable 12 passes through.

An operation of the ferrite core fixing device 41 for holding theferrite core 10 will be explained next. FIG. 12 is a perspective viewshowing an operation of the ferrite core fixing device 41 for holdingthe ferrite core 10. FIGS. 13 and 14 are perspective views showing theferrite core fixing device 41 in a state that the ferrite core fixingdevice 41 holds the ferrite core 10. The ferrite core fixing device 41in the third embodiment can hold two types of ferrite cores havingdifferent sizes (different lengths in the vertical direction in FIG.11).

An operation of holding the ferrite core 10 having a large height willbe explained first with reference to FIGS. 12 and 13. As shown in FIG.12, first, the flat cable 12 passes through the hollow portion 11 of theferrite core 10. In a state that the ferrite core 10 abuts against thecenter holding portion 44 of the ferrite core fixing device 41 (FIG.11), the arm portions 45 and 46 are bent. At this time, both sideportions of the ferrite core 10 enter the rectangular holes 45 a and 46a, so that the arm portions 45 and 46 are easily bent. Then, the ferritecore 10 enters the rectangular holes 45 a and 46 a, so that a movementthereof in the vertical direction is restricted. Further, a movement ofthe ferrite core 10 in the lateral direction is restricted with the bentportions 45 e and 46 e. Since the ferrite core 10 presses the bentportions 45 d and 46 d from above, the ferrite core 10 is pressedagainst the arm portions 45 and 46 with an elastic force of the bentportions 45 d and 46 d.

Then, as shown in FIG. 13, the hook claw 45 b of the arm portion 45 isinserted into the cut portion 46 c of the arm portion 46. The baseportion 45 c of the hook claw 45 b enters the rectangular hole 46 b.Accordingly, the arm portion 45 engages the arm portion 46 in a state ofholding the ferrite core 10.

An operation of holding the ferrite core 14 having a small height willbe explained first with reference to FIG. 14. As shown in FIG. 14, theferrite core 14 with a small height is held between the bent portions 45e and 46 e. The bent portions 45 e and 46 e have the length (length inthe vertical direction in FIG. 11) corresponding to the height of theferrite core 14. Further, as described above, the distance between thebent portions 45 d and 46 d is set to be smaller than the distancebetween the bent portions 45 e and 46 e, thereby restricting a movementof the ferrite core 14 in the vertical direction with the bent portions45 d and 46 d. Accordingly, even in a case of the ferrite core 14 with asmall height, the ferrite core fixing device 41 can holds the ferritecore 14 and restricts a movement thereof in the lateral and verticaldirections.

Similar to the first embodiment (FIG. 7), the ferrite core fixing device41 holding the ferrite core 10 or the ferrite core 14 is fixed to theobject with a screw. That is, a screw is inserted into the screw hole 7formed in the fixed portion 43 of the ferrite core fixing device 41 tofix the ferrite core fixing device 41 to the frame of the electronicphoto printer 20.

When the ferrite core 10 or the ferrite core 14 is removed from theelectronic photo printer 20, an operation reversed from the operationdescribed above is performed. That is, the screw fixing the ferrite corefixing device 41 to the frame is removed, so that the ferrite corefixing device 41 is removed from the frame. The hook claw 45 b of thearm portion 45 of the ferrite core fixing device 41 is pulled out fromthe rectangular hole 46 b of the arm portion 46. The arm portions 45 and46 are opened to release the ferrite core 10 or the ferrite core 14.Alternatively, the ferrite core 10 or the ferrite core 14 may be pulledout from the ferrite core fixing device 41 in a state that the ferritecore fixing device 41 is fixed to the frame. In this case, it is easy toperform a maintenance operation of the electronic photo printer 20.

As described above, the ferrite core fixing device 41 is provided withthe two types of bent portions at two stages for holding the ferritecore. Accordingly, in addition to the advantages of the secondembodiment, the single ferrite core fixing device 41 can hold the twotypes of ferrite cores with different heights, thereby reducing cost ofmanufacturing the ferrite core fixing device 41. It is also possible tomake part control and management easy, thereby reducing maintenancecost.

The disclosure of Japanese Patent Application No. 2004-267362, filed onSep. 14, 2004, is incorporated in the application.

While the invention has been explained with reference to the specificembodiments of the invention, the explanation is illustrative and theinvention is limited only by the appended claims.

1. An electrical device, comprising: a board; a cable including one endportion connected to the board; a component including a hollow portionfor the cable to pass therethrough; and a component fixing deviceincluding a holding portion retained in the hollow portion forrestricting a movement of the component and a fixed portion fixed to anobject.
 2. The electrical device according to claim 1, wherein saidholding portion is integrated with the fixed portion.
 3. The electricaldevice according to claim 1, wherein said holding portion includes atleast two arm portions passing through the hollow portion.
 4. Theelectrical device according to claim 3, wherein each of said armportions includes a hook claw and an engaging portion.
 5. The electricaldevice according to claim 4, wherein said hook claws are arranged to beapart by a distance greater than a width of the hollow portion, and saidengaging portions are arranged to be apart by a distance smaller thanthe width of the hollow portion.
 6. The electrical device according toclaim 1, wherein said component includes a ferrite core.
 7. Theelectrical device according to claim 1, wherein said cable includes aflat cable.
 8. The electrical device according to claim 1, wherein saidcomponent fixing device further includes a sheet member.